YASKAWA UAAFED-30CA2X AC Servo Motor Specification
UAAFED-30CA2X belongs to Yaskawa classic USAFED permanent magnet AC servo series, a high-power industrial-grade servo motor built with integrated DC24V power-off electromagnetic holding brake, predominantly configured for heavy-load spindle auxiliary drive, high-torque feed axis and large-size automatic tool turret driving on heavy-duty CNC lathes, machining centers and automated special processing equipment. This motor adopts high-density laminated stator core and rare-earth permanent magnet rotor design to deliver stable high continuous torque and outstanding instantaneous overload capacity under low-speed heavy-load operating conditions, coping with frequent forward-reverse rotation, intermittent heavy clamping load and high-precision repetitive positioning requirements of heavy-cutting machine tools. The whole motor housing applies fully enclosed IP54 protection structure with natural air cooling via outer casing without auxiliary cooling fan assembly. Letter E in model suffix indicates factory pre-installed rear-end electromagnetic brake module; CA2X stands for exclusive OEM customized configuration including UTOPH-600WC dedicated incremental encoder, unique rear multi-core aviation connector pin definition, customized output shaft dimension and internal fixed wiring layout, which makes this variant non-interchangeable with other CA-series derivative models of identical frame size without complete wiring modification and servo parameter recalibration. Original formal production of UAAFED series has been discontinued by Yaskawa, and available spare motors on global industrial spare part market mainly come from decommissioned machine tool dismantling and professional factory overhaul refurbishment.
Description
YASKAWA UAAFED-30CA2X AC Servo Motor Specification
1. Product Overview
UAAFED-30CA2X belongs to Yaskawa classic USAFED permanent magnet AC servo series, a high-power industrial-grade servo motor built with integrated DC24V power-off electromagnetic holding brake, predominantly configured for heavy-load spindle auxiliary drive, high-torque feed axis and large-size automatic tool turret driving on heavy-duty CNC lathes, machining centers and automated special processing equipment. This motor adopts high-density laminated stator core and rare-earth permanent magnet rotor design to deliver stable high continuous torque and outstanding instantaneous overload capacity under low-speed heavy-load operating conditions, coping with frequent forward-reverse rotation, intermittent heavy clamping load and high-precision repetitive positioning requirements of heavy-cutting machine tools. The whole motor housing applies fully enclosed IP54 protection structure with natural air cooling via outer casing without auxiliary cooling fan assembly. Letter E in model suffix indicates factory pre-installed rear-end electromagnetic brake module; CA2X stands for exclusive OEM customized configuration including UTOPH-600WC dedicated incremental encoder, unique rear multi-core aviation connector pin definition, customized output shaft dimension and internal fixed wiring layout, which makes this variant non-interchangeable with other CA-series derivative models of identical frame size without complete wiring modification and servo parameter recalibration. Original formal production of UAAFED series has been discontinued by Yaskawa, and available spare motors on global industrial spare part market mainly come from decommissioned machine tool dismantling and professional factory overhaul refurbishment.
2. Model Code Definition
UAAFED serves as base series identifier for brake-equipped high-power AC servo motors under Yaskawa USAFED product lineup; numeric digit 30 defines large frame specification corresponding to fixed rated continuous output power of 2.9kW. Letter C denotes rear-mounted integrated aviation plug connection instead of loose flying lead cable layout; numeral 2 represents standardized internal terminal arrangement and fixed base winding routing specified by original factory; suffix X covers full OEM custom contents including dedicated 6000P/R incremental encoder UTOPH-600WC parameter, non-standard shaft keyway size and exclusive connector signal pin assignment. Different letter combinations behind CA lead to totally differentiated encoder feedback protocol and external wiring definition, hence direct drop-in substitution with CA1X, CA3X or other same-frame CA derivative motors is impossible unless connector rewiring, harness replacement and full servo drive commissioning are completed after field installation.
3. Electrical Specifications
The servo motor is rated for three-phase 200VAC industrial input voltage and must be matched with original Yaskawa vintage dedicated SERVOPACK servo drives developed for heavy-load machine tool control system. Continuous rated output power maintains 2.9kW with rated full-load operating current around 20A under factory calibrated working condition, and instantaneous peak overload torque can reach three times of nominal rated torque to absorb sudden impact load generated during heavy workpiece clamping and emergency rapid positioning motion. Built-in electromagnetic holding brake requires independent external 24VDC auxiliary power supply; energized brake coil releases output shaft for normal motor rotation, while sudden brake power cutoff triggers immediate mechanical shaft locking to fix mechanical position and prevent axis slippage under gravity or unexpected power outage. The matched UTOPH-600WC incremental encoder delivers 6000 pulses per rotation differential feedback signal following exclusive CA2X pin definition, mismatched wiring will result in closed-loop position failure and out-of-control motor running fault. Internal stator winding conforms to Class F insulation standard with embedded built-in thermal sensing component, which transmits overheat alarm signal to paired servo amplifier to activate automatic power-off protection and avoid permanent winding burnout under over-temperature working status. Surge suppression components are preinstalled inside motor terminal cavity to restrain industrial instantaneous voltage surge and electromagnetic interference from peripheral inverters and switching power components inside machine control cabinet.
4. Mechanical and Environmental Specifications
Entire motor casing is fully sealed to achieve IP54 dustproof and anti-cutting-fluid splash protection grade, completing heat dissipation entirely through metal shell natural convection without additional forced cooling fan structure. Front driving end is solid integral output shaft with OEM customized flat keyway under CA2X specification for rigid mechanical connection with heavy-load reduction gearbox and transmission assembly. Due to extra rear brake module installation, overall axial length is longer than non-brake UAAFA counterpart of same 30 frame size, while unified standard flange mounting dimension allows direct bolt fastening onto machine tool casting without extra transition fixture processing.
Permissible continuous working ambient temperature ranges from 0°C to +40°C; long-term spare part storage available temperature spans -20°C to +70°C; applicable operating environment relative humidity keeps between 5%RH and 80%RH under non-condensing condition to avoid dew accumulation causing short-circuit damage to stator winding, brake coil and internal encoder circuit. When installation altitude exceeds 1000 meters above sea level, continuous rated load must be properly derated to compensate decreased heat dissipation efficiency under thin air density. The motor can withstand standard industrial vibration within 10Hz to 55Hz frequency scope; installation location with persistent corrosive oil mist, accumulated conductive metal scrap and continuous cutting fluid immersion is strictly prohibited to extend service life of front main bearing, brake friction lining and rear encoder core components.
5. Drive Matching and Control Functions
UAAFED-30CA2X is originally compatible with Yaskawa legacy heavy-load dedicated SERVOPACK servo drivers, supporting two mainstream command input modes including ±10VDC analog speed instruction and differential pulse position command transmitted from upper-level CNC host controller. Corresponding servo control system supports free switching between full closed-loop position control and speed control mode to satisfy heavy-load rapid axis feed, multi-station turret indexing and high-torque mechanical clamping required by heavy-duty turning and milling processing. Benefiting from factory preassembled power-off holding brake, vertically or obliquely arranged heavy-load mechanical axes no longer need extra external mechanical locking device to prevent gravity-induced position shifting after sudden power failure. Equipped incremental encoder lacks absolute position memory function, therefore complete mechanical origin homing operation must be performed after every full system power cut before automatic cyclic machining program resumes to recover accurate mechanical zero reference point of machine axes.
6. Protection and Fault Alarm Description
Multi-layer comprehensive safety protection is realized via coordination between internal embedded sensing elements and matched servo amplifier unit. Stator winding over-temperature signal triggers automatic servo main circuit power cutoff to protect winding from irreversible thermal damage; poor contact or open circuit of exclusive CA2X aviation connector activates independent encoder fault warning displayed on servo operation panel; winding short-circuit and abnormal overcurrent trigger hardware overcurrent protection with immediate main power cut; open or short-circuit failure of built-in brake coil outputs auxiliary fault prompt via drive external terminal ports. All encoder feedback signal circuits are equipped with dedicated EMI filtering components to eliminate complex electromagnetic interference from surrounding machine tool wiring and ensure stable real-time position signal transmission during long-cycle uninterrupted heavy cutting production.
7. Maintenance and Replacement Guidance
Direct on-site drop-in replacement requires identical original UAAFED-30CA2X spare motor; non-brake UAAFA model or same-frame motors with different CA suffix specifications cannot be directly substituted unless full connector rewiring, servo parameter initialization and professional on-site commissioning are finished after installation. Before disassembling motor for bearing inspection, brake friction pad replacement or encoder maintenance work, maintenance operators must fully disconnect three-phase main AC power and independent 24VDC brake auxiliary power supply, then wait no less than 15 minutes for full discharge of servo internal DC bus capacitor to eliminate residual high voltage and avoid electric shock hazard. Standard periodic maintenance items include tightening rear aviation connector fixing screws every three months, replenishing high-temperature resistant bearing grease after accumulating over 8000 continuous working hours and cleaning casing cutting fluid residue and surface dust every half year to retain original natural heat dissipation performance. Random modification to exclusive CA2X encoder pin definition and internal brake wiring layout will lead to unexpected motor runaway and permanent servo drive locking malfunction.
8. Typical Application Scope
This high-power brake-equipped AC servo motor is widely equipped to drive heavy-load feed axes and large-size automatic indexing turrets on heavy-duty CNC lathes, vertical machining centers and customized automated turning equipment from mainstream Japanese and domestic heavy machine tool manufacturers, extensively applied in heavy metal cutting workshops, automobile component precision processing production lines and hydraulic machinery automated assembly equipment. It is especially suitable for mechanical layout with large installation space, frequent heavy-load start-stop operation, strict repetitive positioning precision and mandatory anti-displacement requirement upon unexpected power interruption.
Get a Quote